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            <front>

                <journal-meta>
                                                                <journal-id>deufmd</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">1302-9304</issn>
                                        <issn pub-type="epub">2547-958X</issn>
                                                                                            <publisher>
                    <publisher-name>Dokuz Eylül Üniversitesi</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id/>
                                                                                                                                                                                            <title-group>
                                                                                                                        <trans-title-group xml:lang="en">
                                    <trans-title>DESIGN OF A SPECIAL PURPOSE DIFFRACTIVE OPTICAL ELEMENT USINGVECTOR-SPACE PROJECTION METHODS</trans-title>
                                </trans-title-group>
                                                                                                                                                                                                <article-title>VEKTÖR-UZAYI İZDÜŞÜM METODU İLE ÖZEL AMAÇLI BİR KIRINIMSALOPTİK ELEMAN TASARIMI</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                <name>
                                    <surname>Kuntalp</surname>
                                    <given-names>Damla Gürkan</given-names>
                                </name>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20020501">
                    <day>05</day>
                    <month>01</month>
                    <year>2002</year>
                </pub-date>
                                        <volume>4</volume>
                                        <issue>2</issue>
                                        <fpage>1</fpage>
                                        <lpage>15</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20020501">
                        <day>05</day>
                        <month>01</month>
                        <year>2002</year>
                    </date>
                                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 1999, Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi</copyright-statement>
                    <copyright-year>1999</copyright-year>
                    <copyright-holder>Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi</copyright-holder>
                </permissions>
            
                                                                                                <trans-abstract xml:lang="en">
                            <p>Special-purpose diffractive optical devices are often designed by iterative methods without consideration of convergence properties, and related factors that affect performance. In this paper, we use Vector-Space Projection Methods to design a special purpose optical element that yields increased-depth-of-focus and while doing this, examine the problems associated with the convergence of the projection method under impossibly demanding constraints using both sequential and parallel projection algoritms.</p></trans-abstract>
                                                                                                                                    <abstract><p>Özel amaçlı kırınımsal optik elemanlar genellikle iteratif metotlar kullanılarak tasarlanırlar. Ancak bu konudaki çalışmaların çoğu iteratif metotların yakınsama özelliklerini ve metot performansını doğrudan etkileyen ilgili faktörleri gözönünde bulundurmazlar. Bu çalışmada Vektör-Uzayı İzdüşüm metodu kullanılarak odak derinliğinin arttırılmasını sağlayacak özel amaçlı bir kırınımsal optik eleman tasarımı sunulmuştur. Tasarım kısıtlamaları Vektör-Uzayı İzdüşüm metodunun sağlanması güç kısıtlamalar altındaki performansını ve yakınsama özelliklerini gözlemeye elverişli olacak şekilde seçilmiş ve tasarım sonuçlarıyla birlikte metodunun bu koşullar altındaki davranışı da incelenmiştir.</p></abstract>
                                                            
            
                                                                                        <kwd-group>
                                                    <kwd>Vektör uzayı izdüşüm metodu</kwd>
                                                    <kwd>   Kırınımsal optik eleman</kwd>
                                                    <kwd>   Kırınmayan hüzme</kwd>
                                            </kwd-group>
                            
                                                <kwd-group xml:lang="en">
                                                    <kwd>Vector space projection method</kwd>
                                                    <kwd>   Diffractive optical element</kwd>
                                                    <kwd>  Nondiffracting beam</kwd>
                                            </kwd-group>
                                                                                                                                        </article-meta>
    </front>
    <back>
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                    </back>
    </article>
